The following commit is causing this. Given that it was only added because the Xen folks asked for the better implementation and fixing the issue seems to require an unknown number of additional patches with unknown side effects, I would get this reverted (and the previous patch adding the infrastructure).
Author: Thomas Gleixner <email address hidden>
Date: Sat Feb 5 20:08:59 2011 +0000
xen: Use IRQF_FORCE_RESUME
commit 676dc3cf5bc36a9e129a3ad8fe3bd7b2ebf20f5d upstream.
The following commit is causing this. Given that it was only added because the Xen folks asked for the better implementation and fixing the issue seems to require an unknown number of additional patches with unknown side effects, I would get this reverted (and the previous patch adding the infrastructure).
Author: Thomas Gleixner <email address hidden> e129a3ad8fe3bd7 b2ebf20f5d upstream.
Date: Sat Feb 5 20:08:59 2011 +0000
xen: Use IRQF_FORCE_RESUME
commit 676dc3cf5bc36a9